This same reason that's why i seldom using chat section of every gambling site that i use , i even try to be anonymous when plying because i am irritated of chats like this.
Imagine that we are all risking our money to play then someone will ask because he saw you winning ?
Moderator nust be strict in this matter because this push gamblers to find other site whenre they can play will more clean chatroom and not for beggars .